Casting-machine



` (No Model.) 2 Sheets-Sheet 1.

C. 0. YALE.

GASTING MAGHINE.

No. 5573629. Patented Nov. 22, 1887. 16.

Dig. 5. ,y 9 e O Q W rnecssecs. l van ror (No Model.) 2 Sheets-Sheet 2.

C. 0. YALE.

GASTING MACHINB.

No. 373,629. Patented Nov. 22, 1887.

u. .Lilli WN 'zecssecs... mm /w,

line x w, Fig. 1.

UNITED STATES PATENT OFFICE,

CHARLES O. YALE, OF ROME, NEW YORK.

CASTINGn-MACHINE.

SPECIPICATION forming part of Letters Patent No. 373,(529. datedNovember 22, 1887.

Application filed March 8, 1886. Renewed October 29, 1887. Serial No.%53,732.

To aZZ whom it may concew:

Be it known that I, CHARLES O. YALE, of Rome, in the county of Oneidaand State of New York, have inveuted certain new and useful Improvemeutsin Casting- Machines and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanyin g drawings, and to thefigures of reference marked thereon, which form part of thisspecification.

My invention relates to castingmachines; and it consists in themechanisn hereinafter pointed out and claimed.

In the accompanying drawings, Figure 1 represents a plan View of myimproved casting-machine. Fig. 2 is a vertical section on Fig. 3 is avertical section of the hopper, taken online a: x, Fig. 1, representingthe same detached from the machine. Fig. 4 is a longitudinal sectionView of myimproved charging-valve. Fig. 5 represents an anode cast in mymachine, with its electric splines cast therein. Fig. 6 is au edge Viewof Fig. 5 on line y y. Fig. 7 is an edge View of the molds in positionto receive the casting.

Fig. 8 is a perspective View of the nolds open,

showing position of splines 0 0 before casting.

In the accompanying drawings similar figures of reference refer tocorresponding parts throughout the several views.

In constructing my improved casting-machine I provide two rings orcircles, 1 and 2, Fig. 1. The outer ring or circle, 2, is supported in asuitable frame and held stationary, and is somewhat larger than ring orcircle 1, their respective sizes and shapes being graded according tothe purposes or molds to be used, having reference to their size. Ipreferably eonstruct the smaller ring or circle of the angle-iron 4.(shown in eross-section in Fig. 2.) The ring or circle 1 is nounted tobe rotated on anti-friction rolls 3, supported on suitable bearings, theangle-iron forming the movable circle restng on a succession ofanti-friction rolls, forming a track on which the circle travels. Threeor more of these -rolls are preferablyprovided. It is quite obvious thatthese (No model.)

anti-friction rolls may be attached to the lllOV- ing ring or circle insuch amanner as to travel on a track provided for them. It is equallyobvious that either of said rings orcircles may be constructed to move,one being held stationary. On one angle of the traveling ring or circleI attach a succession ofjointed nolds of the required shape and form.These moids are jointed at the lower end, the upper end being free toopen when the same passes the pouring-point. The rings or circles arelocated eccentrically to each other, as indicated in Fig. 1, theireccentric location being (letermined by the thickness or condition ofthe molds. The traveling ring or circle to which thejointed niolds areattached is intermittently moved by ratchets 6, engaged by pawl 7,driven by crank 8 when power is applied. The ratchets and crank shouldbe constructed in reference to the size and number of the nolds inreference to the traveling ring or circle, as

the traveling ring or circle is movedthe dis-` tance of one mold at atime. A mold is brought into position for receiving the metal, asindicated at 9, Fig. 1. The metal is poured in hopper 10, Fig. 3, heldover the mouth of the mold to guide and distribute the metal. As eachmold advances to receive the eharge of metal, it passes betweenanti-friction rolls 11 11, Figs. 1 and 2, which are kept to theirposition by coil-springs surrounding the shank 12 12, Fig. 7. The shanksto these anti-frietion rolls fit and move in boxes 13 13, Fig. 7,mounted in the frame, and by this mechar ism the mold is held firnlywhile it is receiving the charge. For accurately guiding and holding thetraveling ring or circle to its work I provide a system ofguide-rolls,14 14, located on either side of the traveling circle or ring.

For pouring the metal into the mold from the furnace I provide charger15, Fig. 4, having openings 16, 17, and 18, though the latter, however,may be omitted. This charger is inserted in the furnace with the opening16 in the charger extending through the Walls of the furnace to receivethe nolteu metal, as indicated in Fig. 2. The discharge end 18 eX- tendsover the opening in the molds, a sufficient space being left between thetwo to ICO ficient size to retain metal to fill one mold.

The valves and stem are then noved inward,

and the valve closing the aperture 16, and at i the same time openingthe aperture 17 ,thereby allows the molten metal to flow into the mold,

which is then movedon and another moved into position. As the mold movespast the pouring-point the same is allowed to separate, as indicated inFig. 8, when the casting is re` moved. The mold is 'prepared byintroducing at the upper end of the mold the thin splines of electricconducting metal, o o,which are cast into the anode, and applying asolution of finely-divided carbon,when the mold is ready for receivinganother casting, which work is performed while the ring or moving circleis being moved.

25 represents the ornamental depressions in theoolchand 26 the spline onthe edgesof the mol In the drawings the machine illustrated wasconstructed with reference to its use in casting lead-bullion anodes.The machine, however, is equally adapted for use in casting brass,copper, zinc, antimony, and similar metals where thin castings arerequired. In producing thin casting from any of the metals before namedgreat trouble is encountered,

as the metal rapidly chills, thus preventing a perfect casting. Toovercome this dificulty the mold must :be free from all gases producedby heated metal in the mold, as aslight quantity of gas generated by themetal prevents the same from flowing, thereby producing an imperfectcasting. To produce a perfect cast ing of the character described it isquite important to introduceinto the mold the element of non conductorof heat to prevent rapid chilling. At the same time means must beprovided for facilitating the flow of the metal in the mold. Thetroubles hereinbefore set forth are measurably overcome by forming molds22 22, Fig. 8, from carbon. r

In many instances it is desirable to use a metal mold, in which case Iform a car-bonated surface in the molds themselves by the use of amixture of finely-divided carbon and alcohol or its equivalent, thesolution being applied to the face of the molds with a brush or itsequivalent. By the use of this mixture a complete casting may be formedwith very little difficulty.

'What I claim as new, and desireto secure by Letters Patent, is-

1. In a casting-machine, two rings of unequal size eccentrically locatedwith reference i to each other, with jointed molds mounted thereon, andmeans for moving one of said .rings.

2. In a casting-machine, the combination of two rings of unequal sizeeccentrically located with relation to each other, one of said ringsconstructed of angle-iron in cross-section, jointed molds rigidly heldto the angle-iron ring, and means for intermittingly moving the ringwith the molds attached.

v 3. In a casting-machine, the combination of two rings ofnnequal sizeeccentrically located with relation to each other, one of said ringsconstructed of angle-iron, jointed molds held to the angle-iron ring,and means for moving the ring with the molds attached.

4. The combination of the rings of unequal size eccentrically locatedwith relation to each other, the jointed molds attached to one of saidrings, and means for moving the same.

5. The combination, with the stationary ring, of the movable ring withjointed molds attached thereto, and means for intermittentl movingthemovable ring.

6. The casting-machine having two rings of to each other, with jointedmold mounted on i one ring, in combination with the anti-friction rolllocated and mounted to engage and press the parts of the molds togetherwhen the metal is being poured, and means for adjustirng said rolls.

7. The combination of two rings of unequal size eccentrically locatedwith reference to each other, one of said rings movable, with jointedmolds mounted thereon, anti-friction rolls mounted to engage and pressthe parts of the mold together, and means for in-termittently moving thering and molds.

8. The combination of the jointed molds attached to a movable ring, astationary ring of different diameter, the two eccentrically locatedwith reference to each other for pressing the molds together when themetal is poured.

9. The combination of a movable ring 'eccentrically located withreference to a ring of a difi'erent diameter, carrying the jointed moldand having ratchet-teeth, a pawl for engaging the teeth, and a crank formoving the awl. p 10. The jointed molds attached to a movable `ringmoving in contact with a stationary ring of different size, the twoeccentrically located, in combination with a charger located at theclosi n g-poi nt of the eccentric, the charger having openings .atopposite ends, and two valves on a valve-stem for opening and closandmeans for moving the molds, substanbially In witness whereof I haveaffixed my signaas set forth. turein presence of two witnesses.

13. The combnaton of the rotating ring carrying jointed carbonated noldsand the 5 stationary ring of larger diameter, the two be- Witnesses:

ing rotated eccentrically, substantially as set EDWIN H. RISLEY, forth.I M. E. ROBINSON.

CHARLES 0. YALE.

